Microchip Technology PIC24EP256GU810, PIC24EP256GU814, PIC24EP512GU810, PIC24EP512GU814 Reference Manual

HIGHLIGHTS

1

Introduction

Section 1. Introduction

This section of the manual contains the following major topics:

1.1 Introduction....................................................................................................................1-2

1.2 Device Structure........... ................................................................... ... ............................1-3

1.3 Development Support....................................................................................................1-4

1.4 Style and Symbol Conventions......................................................................................1-5

1.5 Related Documents .......................................................................................................1-6

1.6 Revision History.............................................................................................................1-7

© 2011 Microchip Technology Inc. DS70573B-page 1-1

dsPIC33E/PIC24E Family Reference Manual

1.1 INTRODUCTION

Microchip is a leading provider of microcontrollers (MCUs) and analog semiconductors. The
company’s focus is on developing products that meet the needs of the embedded control market.
Microchip is a leading supplier of the following products:

• 8-bit general purpose microcontrollers (PIC® MCUs)

• 16-bit microcontrollers and 32-bit microcontrollers

•dsPIC® 16-bit Digital Signal Controllers (DSCs)

• Specialty and standard non-volatile memory devices

• Security devices (KEELOQ®)

• Application-specific standard products
For a listing of the products Microchip offers, request a Microchip Product Line Card. This

literature can be obtained from your local Microchip sales office or downloaded from the
Microchip Web site (

Part 1 of this manual describes the following 16-bit dsPIC33E/PIC24E devices:

• dsPIC33EP256MU806

• dsPIC33EP256MU810

• dsPIC33EP256MU814

• dsPIC33EP512MU810

• dsPIC33EP512MU814

• PIC24EP256GU810

• PIC24EP256GU814

• PIC24EP512GU810

• PIC24EP512GU814
This manual explains the operation of the dsPIC33E/PIC24E family architecture and peripheral

modules, but does not cover the specifics of each device. For device specific information, refer
to the data sheet. The information available in the data sheet includes the following:

• Device memory map

• Device pinout and packaging details

• Device electrical specifications

• List of peripherals included in the device
Code examples are provided throughout this manual. These examples are for reference

purposes only and may need to be modified to suit a specific processor or MPLAB® tools version.

www.microchip.com).

DS70573B-page 1-2 © 2011 Microchip Technology Inc.

Section 1. Introduction

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1.2 DEVICE STRUCTURE

Each part of the dsPIC DSC device can be placed into one of the following groups:

•CPU Core

• System Integration

• Peripherals

1.2.1 CPU Core

The CPU core pertains to the basic features required to make the device operate. The following
sections of Part I of the manual relate to the CPU core:

• Section 2. “CPU”

• Section 3. “Data Memory”

• Section 4. “Program Memory”

• Section 6. “Interrupts”

1.2.2 System Integration

System integration functions help to accomplish the following:

• Decrease system cost

• Increase system reliability

• Increase design flexibility
The following sections of Part I of the manual discuss dsPIC33E/PIC24E system integration

functions:

• Section 5. “Flash Programming”

• Section 7. “Oscillator”

• Section 8. “Reset”

• Section 9. “Watchdog Timer and Power-Saving Modes”

• Section 23. “CodeGuard™ Security”

• Section 24. “Programming and Diagnostics”

• Section 30. “Device Configuration”

Introduction

1.2.3 Peripherals

The dsPIC33E/PIC24E device has many peripherals that allow it to be interfaced to external
circuitry. The following sections of the manual discuss peripherals:

• Section 10. “I/O Ports”

• Section 11. “Timers”

• Section 12. “Input Capture”

• Section 13. “Output Compare”

• Section 14. “High-Speed PWM”

• Section 15. “Quadrature Encoder Interface (QEI)”

• Section 16. “Analog-to-Digital Converter (ADC)”

• Section 17. “UART”

• Section 18. “Serial Peripheral Interface (SPI)”

• Section 19. “Inter-Integrated Circuit™ (I2C™)

• Section 20. “Data Converter Interface (DCI)”

• Section 21. “Enhanced Controller Area Network (ECAN™)”

• Section 22. “Direct Memory Access (DMA)”

• Section 25. “USB On-The-Go (OTG)”

• Section 26. “Comparator”

• Section 27. “32-bit Programmable Cyclic Redundancy Check (CRC)”

• Section 28. “Parallel Master Port (PMP)”

• Section 29. “Real-Time Clock and Calendar (RTCC)”

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© 2011 Microchip Technology Inc. DS70573B-page 1-3